Director, International Atomic Energy Agency Laboratories, Seibersdorf. Director, Department of Research and Isotopes, International Atomic Energy Agency since 1985. Senior Scientist, Chem Division, Argonne National Laboratory, United States of America.
Director, Physical Chem Laboratory, Research and Development, CNENENEA, Italy. Professor of Chem, University of Padua-Sassari, Italy. Group Leader, Material Chem Division, CNENENEA, Italy.
Visiting Professor, Inorganic Chem, Royal Institute of Technology, Sweden. Visiting Professor, Chem, Brunei University-Imperial College, United Kingdom.